.alerta {
    visibility: hidden;
    opacity: 0;
    position: fixed;
    left: 50%;
    top: 20px;
    z-index: 99999;
    transform: translateX(-50%);
    height: 50px;
    width: 97vw;
    background-color: #007bff;
    border-radius: 10px;
    z-index: 0;
    transition: 0.5s all;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
}
.alerta p {
    color: white;
    font-size: 16px;
    padding: 0 15px;
}
.show {
    z-index: 9999;
    opacity: 1;
    visibility: visible;
}